I am a prime number.
The double of myself is equal to the square of me.

which number am I?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Replace the question mark in the picture below.

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

What kind of storm is always in a rush?

Spot the 3 Differences in the given Picture.

Can you find out the remainder when 3^300 is divided by 5?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

This isn't your average math problem. It requires you to see beyond basic operations and identify the hidden logic that connects the numbers.

18, 46, 94, ?, 52, 61